The Dutch elm tree disease
By: by Curtis May and G.F. Gravatt
Contributors: Gravatt, G. F. (George Flippo), 1891-
Series: Circular / United States Department of Agriculture -- no. 170; Circular (United States. Dept. of Agriculture) -- no. 170.
Publisher: U.S. Dept. of Agriculture
Published: 1931
Place of publication: Washington, D.C
Language: eng
Number of pages: 10
Subjects: Dutch elm disease; Elm; Diseases and pests
Notes: Caption title.